/*
 *  ppui/ScrollBar.h
 *
 *  Copyright 2009 Peter Barth
 *
 *  This file is part of Milkytracker.
 *
 *  Milkytracker is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  Milkytracker is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with Milkytracker.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

/////////////////////////////////////////////////////////////////
//
//	PPScrollbar control class
//
/////////////////////////////////////////////////////////////////
#ifndef SCROLLBAR__H
#define SCROLLBAR__H

//#ifndef __LOWRES__
#define SCROLLBUTTONSIZE 10
//#else
//	#define SCROLLBUTTONSIZE 8
//#endif

#include "BasicTypes.h"
#include "Control.h"
#include "Event.h"

// Forwards
class PPGraphicsAbstract;
class PPButton;

class PPScrollbar : public PPControl, public EventListenerInterface
{
    private:
        PPColor backgroundColor;

        pp_uint32 oneDimSize;
        bool horizontal;

        PPButton* backgroundButton;
        PPButton* buttonUp;
        PPButton* buttonDown;
        PPButton* buttonBar;

        PPControl* caughtControl;
        bool controlCaughtByLMouseButton, controlCaughtByRMouseButton;
        PPPoint caughtMouseLocation, caughtControlLocation;

        pp_int32 currentBarSize, currentBarPosition;

        //bool pressed;
        void initButtons();
    public:
        PPScrollbar (pp_int32 id, PPScreen* parentScreen, EventListenerInterface* eventListener,
                     const PPPoint& location, pp_int32 size,
                     bool horizontal = false);

        virtual ~PPScrollbar ();

        void setBackgroundColor(const PPColor& color) {
            backgroundColor = color;
        }

        // set bar size [none:0 - full:65536]
        void setBarSize(pp_int32 size, bool repaint = false);
        // set bar position [0 - 65536]
        void setBarPosition(pp_int32 pos, bool repaint = false);

        pp_uint32 getBarSize() const {
            return currentBarSize;
        }
        pp_uint32 getBarPosition() const {
            return currentBarPosition;
        }

        virtual void paint(PPGraphicsAbstract* graphics);

        virtual pp_int32 dispatchEvent(PPEvent* event);

        pp_int32 handleEvent(PPObject* sender, PPEvent* event);

        virtual void setLocation(const PPPoint& location);

        virtual void setSize(pp_uint32 size);
};

#endif